相关实验视频
Updated: Jul 14, 2025

06:57
Determining Viral Disinfection Efficacy of Hot Water Laundering
Published on: June 21, 2022
2.6K
对过和杀菌技术的有效性进行范围审查,以捕获和禁用微生物和病毒
K Kompatscher1, J M B M van der Vossen2, S P M van Heumen1
1Netherlands Organization for Applied Scientific Research, Department of Building and Energy Systems, Delft, The Netherlands.
The Journal of hospital infection
|October 5, 2023
概括
过,紫外线杀菌辐射 (UVGI) 和电离等空气净化技术显示出减少空气中的病原体的前景. 然而,关于它们在现实世界中有效性的证据,特别是针对SARS-CoV-2的证据,仍然不确.
科学领域:
- 环境健康 环境健康
- 微生物学 微生物学
- 公共卫生 公共卫生
背景情况:
- 随着COVID-19大流行,人们对室内空气传播病原体传播的意识提高了.
- 目前正在探索空气净化技术,以降低微生物度并使空气中的病原体无活化.
- 过,紫外线杀菌辐射 (UVGI) 和电离是空气净化研究的关键技术.
研究的目的:
- 审查空气净化技术在捕获和灭活空气中的微生物和病毒方面的科学证据.
- 在实际环境中专门评估UVGI和离子化对SARS-CoV-2的有效性.
- 确定当前关于空气净化系统实际性能研究中的差距.
主要方法:
- 使用范围审查方法来系统地收集和分析相关文献.
- 应用了排除标准,结果包括了75项研究进行详细分析.
- 审查的重点是空气净化技术的实验室和实际应用研究.
主要成果:
- 实验室研究表明,UVGI和对各种微生物和病毒的电离的无活化效率高.
- 在实际环境中,直接将UVGI和电离与SARS-CoV-2无活化的证据是有限的.
- 控制的实验室发现并不总是转化为空气净化系统的现实性能.
结论:
- 关于空气净化技术在实践中的整体有效性,不能得出任何最终结论.
- 实验室记录的效率与现实应用结果之间存在重大差异.
- 需要进一步的研究来验证空气净化系统对空气中的病原体如SARS-CoV-2的实际有效性.
相关概念视频
Physical Methods for Controlling Microbial Growth: Radiation and Filtration
38
Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
38
Antimicrobial Effectiveness
26
The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
26
Methods for Controlling Microbial Growth
49
Microbial growth control refers to various methods employed to inhibit, reduce, or eliminate microorganisms to ensure safety and hygiene across different settings. These methods are categorized based on the target environment and the level of microbial control required.Biocides are versatile agents designed to control microorganisms by either inhibiting their growth or outright killing them. These agents work through various physical, chemical, mechanical, or biological mechanisms. The...
49
Chemical Agents for Microbial Control
40
Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
40
Methods of Sterilization I: Physical Methods
20.1K
As used in a healthcare facility, sterilization destroys all microorganisms through physical or chemical methods. The physical method includes steam, dry heat, boiling water, and radiation.
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...
20.1K
Cleaning, Sterilization, and Disinfection
7.0K
Cleaning, disinfection, and sterilization are the methods that help to break the infection chain and prevent disease.
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
7.0K

